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相关概念视频

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Ribosome Profiling

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Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
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Probing RNA Structure with Dimethyl Sulfate Mutational Profiling with Sequencing In Vitro and in Cells
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使用生物物理和计算方法探测RNA-小分子相互作用.

Amiu Shino1, Maina Otsu1, Koji Imai1

  • 1Basic Research Division, Veritas In Silico Inc., Shinagawa, Tokyo 141-0031, Japan.

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|October 19, 2023
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概括

这项研究优化了发现向RNA的小分子的方法. 诺基诺被确定为结合剂,碎片分子轨道计算有助于合理设计用于RNA向疗法的药物.

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科学领域:

  • 生物化学 生物化学
  • 药用化学 医学化学
  • 计算生物学 计算生物学

背景情况:

  • 针对RNA的小分子为尚未满足需求的疾病提供治疗潜力.
  • 在选择工具和建立RNA向小分子发现工作流程方面存在挑战.
  • 优化的实验和计算方法对于推进这个领域至关重要.

研究的目的:

  • 展示一种基于光的试验,用于选小分子库与RNA干循环对抗.
  • 用生物物理技术验证已识别的结合剂.
  • 利用计算方法来理解和预测药物向相互作用.

主要方法:

  • 以光为基础的高通量选试验.
  • 生物层干扰测量,同热度定位热量测量 (ITC) 和核磁共振 (NMR) 光谱仪用于生物物理验证.
  • 碎片分子轨道 (FMO) 计算用于相互作用分析和合理的药物设计.

主要成果:

  • 一个基于光的屏幕识别了诺基诺,这些诺基诺可以结合和稳定RNA干循环.
  • 生物物理测定证实了诺基诺的结合,并建议保留结合模式.
  • FMO的计算准确地预测了结合的自由能量,并且与ITC数据有很好的相关性.
  • 设计的诺基诺类似物通过FMO分析显示了可预测的结合亲缘关系.

结论:

  • 坐标测试对于确认RNA与小分子结合和选择有效化合物至关重要.
  • 碎片分子轨道 (FMO) 计算是合理设计RNA向疗法的宝贵工具.
  • 优化的查和计算方法可以加快新型RNA向药物的发现.